R: Get a table of qgram counts for integer sequences

seq_qgrams {stringdist} | R Documentation

## Get a table of qgram counts for integer sequences

### Description

Get a table of qgram counts for integer sequences

### Usage

    seq_qgrams(..., .list = NULL, q = 1L)

### Arguments

`...` | Any number of (named) arguments that will be coerced with `as.integer`
`.list` | Will be concatenated with the `...` argument(s). Useful for adding integer vectors named 'q'.
`q` | The size of q-gramming.

### Value

A `matrix` containing q-gram profiles. Columns 1 to `q` contain the encountered q-grams. The ensuing (named) columns contain the q-gram counts per vector. Run the example for a simple overview.

Missing values in integer sequences are treated as any other number.

### See Also

`seq_dist`, `seq_amatch`

### Examples

    # compare the 2-gram overlap between sequences 1:3 and 2:4
    seq_qgrams(x = 1:3, y=2:4,q=2)

    # behavior when NA's are present.
    seq_qgrams(1:3,c(1,NA,2),NA_integer_)

[Package stringdist version 0.9.4.6 Index]